(19)
(11)EP 2 138 830 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
03.04.2013 Bulletin 2013/14

(43)Date of publication A2:
30.12.2009 Bulletin 2009/53

(21)Application number: 09251571.7

(22)Date of filing:  16.06.2009
(51)Int. Cl.: 
G01N 21/35  (2006.01)
G01N 17/00  (2006.01)
G01N 21/84  (2006.01)
(84)Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA RS

(30)Priority: 28.06.2008 US 164026

(71)Applicant: THE BOEING COMPANY
Chicago, IL 60606-2016 (US)

(72)Inventors:
  • Shelley, Paul H.
    Lakewood, WA 98498-3696 (US)
  • LeRiviere, Diane R.
    Seattle, WA 98136 (US)
  • Gross, Gwen M.
    Redmond, WA 98052 (US)
  • Werner, Gregory J.
    Puyallup, WA 98374 (US)

(74)Representative: McLeish, Nicholas Alistair Maxwell 
Boult Wade Tennant Verulam Gardens 70 Gray's Inn Road
London WC1X 8BT
London WC1X 8BT (GB)

  


(54)Method for performing IR spectroscopy measurements to quantify a level of UV effect


(57) A method of non-destructively determining the amount of ultraviolet degradation of a surface and/or paint adhesion characteristics of the surface corresponding with UV damage including determining a physical property of a composite material/surfacing film by providing a series of composite materials/surfacing films which are subjected to increasing UV light experience to create a set of UV damage standards, collecting mid-IR spectra on those standards, performing data pre-processing and then multivariate calibration on the spectra of the composite materials/ surfacing films, and using that calibration to predict the UV damage for samples in question.